 (function (doc, win) {
    var docEl = doc.documentElement,
    resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize',
    recalc = function () {
        var clientWidth = docEl.clientWidth;
        if (!clientWidth) return;
        docEl.style.fontSize = 100 * (clientWidth / 750) + 'px';
    };
    if (!doc.addEventListener) return;
    win.addEventListener(resizeEvt, recalc, false);
    doc.addEventListener('DOMContentLoaded', recalc, false);
})(document, window);

var _mtac = {};
(function () {
    var mta = document.createElement("script");
    mta.src = "http://pingjs.qq.com/h5/stats.js?v2.0.2";
    mta.setAttribute("name", "MTAH5");
    mta.setAttribute("sid", "500648580");
    var s = document.getElementsByTagName("script")[0];
    s.parentNode.insertBefore(mta, s);
})();